Unwanted emails added during plugin updates

Without my requesting it, I’m now getting over a hundred weekly and monthly security summary emails from my clients’ websites. Enabling this on existing sites is a very annoying and ill-thought out decision which would take me a couple of hours of mindless clicking to disable.

But why would I bother disabling it when it is quite likely that developer of Limit Login Attempts is likely to reenable the unwanted feature when they next update their plugin??@!#

Feel free to set the feature to enabled by default on new installations. But existing sites should have the feature disabled by default when introduced in a plugin update.